Hello Claudia! In response to your query, a museum I worked for in SC regularly challenged visitors to think about cultural symbols and ideas that were "controversial". In many of those instances, we used interpretive labels that questioned visitors. We also provided exhibit notebooks where visitors could record their thoughts or vent, when necessary. These notebooks, while simple enough, were incredibly effective and provided curators with information on what our visitors were thinking and whether or not we were getting the point across. The Strong Museum in Rochester also uses excellent interactive techniques to encourage visitors to really think about objects and ideas we regularly take for granted. As an aside, AASLH's spring issue of History News is all about controversy and how we can use controversial subjects as a tool for learning. Deanna J. Kerrigan AASLH [log in to unmask]